If it starts firing again, I would do a high speed test ride then stop & feel the coils >> they should be warm, not hot. press hard w your fingers & don't get burned by the valve cover. Mine were getting very hot to the touch, so I installed the green Dyna 3.0 ohm ignition coils. If the spark plug wires haven't been replaced, I would at the least redo the spark plug wire connections at all points >> unscrew the ribbed compression boots at the coils & untwist the wires from the spark plug caps. If they have the grayish oxidation, you could nip off the ends of the plug wires a tad.
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